The 10 News Investigators discovered the Florida Department of Transportation (FDOT) quietly changed the state’s policy on yellow intervals in 2011, reducing the minimum below federal recommendations. The rule change was followed by engineers, both from FDOT and local municipalities, collaborating to shorten the length of yellow lights at key intersections, specifically those with red light cameras (RLCs).

While yellow light times were reduced by mere fractions of a second, research indicates a half-second reduction in the interval can double the number of RLC citations — and the revenue they create. The 10 News investigation stemmed from a December discovery of a dangerously short yellow light in Hernando County. After the story aired, the county promised to re-time all of its intersections, and the 10 News Investigators promised to dig into yellow light timing all across Tampa Bay.